• Developed and deployed Profé, a Spanish-language LLM chatbot that assists users with tutorials, teaches financial concepts, and promotes good financial habits.
• Led real-time fraud detection implementation for card transactions with sub-1-second response times, enabling point-of-sale declines based on data-driven insights to protect cardholders.
• Built and deployed the backend service for a banking platform from scratch as part of a 4-person team in 6 months, implementing REST APIs, compliance logic, transaction recording, notifications, document uploads, and testing using Java, Spring, and Postgres.
• Contributed to critical infrastructure tasks, including AWS configuration, firewall implementation, CI/CD pipeline development, third-party API integration, and production/hotfix deployments.
• Owned data pipeline maintenance, API integration, dashboard development, and data analytics; served as the data subject matter expert for executives and cross-functional teams.